ROTORCOMP NK 31 - Service

5.4
[en] 02/2014
Installation and operating manual - NK 31ROTORCOMP VERDICHTER
5.6 Air outlet
The pressure loss at the air outlet due to air after-
coolers, ttings, piping, etc.should be as small as
possible.
Note
Cross-sections of the outlet pipe must be gener-
ously dimensioned. Avoid pressure losses due to
elbow screw ttings.
The outlet pipe must be connected stress-free to
the outlet.
Warning
Serious injuries and damage are possible in case
of operation without a safety valve!
Operation without a safety valve on the separator
tank is not permitted.
A possible compressed air temperature (at
the outlet) of up to 110°C/230°F requires the
components connected downstream, e.g. the
compressed-air hose, pressure switch, air after-
cooler, ttings, etc. to be designed for this tem-
perature.
We therefore recommend the installation of an air
after-cooler.
When used without an air after-cooler, the high
outlet temperature must be pointed out to the
nal customer.
Note
5.7 Oil cooling
Note
The cooler connection lines must be con-
nected torque-free to the oil connections.
The following information on the design and
execution of the oil cooling system must be ob-
served.
– The oil cooling system must be designed so
that the oil outlet temperature is a maximum of
105°C/220°F at the maximum intended ambi-
ent temperature.
– The oil circulation quantity is dependent on the
pressure difference between the outlet and the
inlet pressure of your application.
– The oil cooler must be installed so that it can
be cleaned easily.
5.8 Service
Ensure good accessibility to the service points
when installing the compressor module in a
housing:
– Oil lling point
– Oil drain point
– Removal of the separator cartridge (removal
dimensions according to offer drawing)
– Removal of the oil lter cartridge (observe the
removal dimensions specied in the offer draw-
ing)
– Easy cleaning of the oil cooler
– Replacement of the shaft seal (removal and
installation of the end cover and the bearing
race)
– Belt drive (accessibility, specications for cor-
rect belt tension)